Global Patent Index - EP 0968405 A1

EP 0968405 A1 2000-01-05 - AN APPLICATION SPECIFIC INTEGRATED CIRCUIT FOR USE WITH AN IR THERMOMETER

Title (en)

AN APPLICATION SPECIFIC INTEGRATED CIRCUIT FOR USE WITH AN IR THERMOMETER

Title (de)

ANWENDUNGSSPEZIFISCHE INTEGRIERTE SCHALTUNG FÜR EINEN INFRAROT-THERMOMETER

Title (fr)

CIRCUIT INTEGRE DE TYPE ASIC, UTILE AVEC UN THERMOMETRE A INFRAROUGES

Publication

EP 0968405 A1 (EN)

Application

EP 98910481 A

Priority

  • US 9805298 W
  • US 81949697 A

Abstract (en)

[origin: WO9841827A1] An application specific integrated circuit (ASIC) for use with an IR thermometer includes a voltage regulator, a power on reset, a current reference, a voltage reference, a bias voltage generator (resistor divider), a constant current source, an ambient sensor amplifier, a pyroelectric sensor amplifier, an analog multiplexer, and an analog to digital converter. A microprocessor is interconnected with the ASIC to process the electrical signals from the ASIC in order to calculate the absolute temperature of the object being measured. The electrical signals provided by the ASIC correspond to a signal generated by the pyroelectric sensor indicative of the temperature of the object being measured and a signal generated by the ambient temperature sensor indicative of the ambient temperature of the pyroelectric sensor.

IPC 1-7 (main, further and additional classification)

G01J 5/02; G01K 1/20

IPC 8 full level (invention and additional information)

G01J 5/04 (2006.01); G01J 5/10 (2006.01)

CPC (invention and additional information)

G01J 5/34 (2013.01); G01J 5/02 (2013.01); G01J 5/026 (2013.01); G01J 5/04 (2013.01); G01J 5/049 (2013.01); G01J 2005/068 (2013.01)

Citation (third parties)

Third party :

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9841827 A1 19980924; AU 6471498 A 19981012; EP 0968405 A1 20000105

INPADOC legal status


2000-10-11 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20000711

2000-01-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991013

2000-01-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE